Each period of Atlantean history
had a particular style relating to the way its ruling class presented
itself to the world at large. This is particularly relevant to its use
of flags and emblems, and to the colours in which it displayed itself.
The flags and emblems related to the religion and mythology of the
Empires, and more will be said about these in the History of the First
Empire below. The colours used differed for each epoch of the history of
the Empire, and the characteristic colour of the period concerned will
be indicated here by the background colour of each part of the History.

Thus the colour characteristic of the First Empire, as
here and in the part of this History below which describes it, was green. This became
Imperial orange, or yellow after the accession of Atlaniphon I in 361.
The Republicans after 591 deliberately turned their face against
anything redolent of the old Empire, and used red as a sign of rebellion
and of the Republic itself. The parts of the old Empire still loyal to
an Emperor retained orange, of course, though this became a much darker
and more muted colour, almost brown after 630. This also became the colour of the
subsequent Third Empire. Later still, after 750, the Fourth Empire
changed this to blue. The Tyrants favoured an appropriately grim shade
of black, and finally, after 828, the Fifth Empire returned to an
Imperial colour, this time, purple.